...ro. Two operations can be performed on semaphores: increment the semaphore value by one ( sem_post (3)); and decrement the semaphore value by one ( sem_wait (3)). If the value o…wrapper for PostgreSQL client commands NAME pg_wrapper - wrapper for PostgreSQL client commands SYNOPSIS client-program [ --cluster version / cluster ] [...] ( client-program : psq…...unctions are present: sem_close () sem_destroy () sem_getvalue () sem_init () sem_open () sem_post () sem_trywait () sem_unlink () sem_wait () SHM - _POSIX_SHARED_MEMORY_OBJECTS…Writing and packaging system daemons NAME daemon - Writing and packaging system daemons DESCRIPTION A daemon is a service process that runs in the background and supervises the sys…define a new domain NAME CREATE_DOMAIN - define a new domain SYNOPSIS CREATE DOMAIN name [ AS ] data_type [ COLLATE collation ] [ DEFAULT expression ] [ domain_constraint [ ... ] ]…define a new tablespace NAME CREATE_TABLESPACE - define a new tablespace SYNOPSIS CREATE TABLESPACE tablespace_name [ OWNER { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER…show the value of a run-time parameter NAME SHOW - show the value of a run-time parameter SYNOPSIS SHOW name SHOW ALL DESCRIPTION SHOW will display the current setting of run-time …...cvfrom (2) recvmsg (2) rename (2) renameat (2) Added in POSIX.1-2008 rmdir (2) select (2) sem_post (3) send (2) sendmsg (2) sendto (2) setgid (2) setpgid (2) setsid (2) setsocko…change a run-time parameter NAME SET - change a run-time parameter SYNOPSIS SET [ SESSION | LOCAL ] configuration_parameter { TO | = } { value | ' value ' | DEFAULT } SET [ SESSION…mail addressing description NAME mailaddr - mail addressing description DESCRIPTION This manual page gives a brief introduction to SMTP mail addresses, as used on the Internet. The…change a database NAME ALTER_DATABASE - change a database SYNOPSIS ALTER DATABASE name [ [ WITH ] option [ ... ] ] where option can be: ALLOW_CONNECTIONS allowconn CONNECTION LIMIT…overview of Linux IPC namespaces NAME ipc_namespaces - overview of Linux IPC namespaces DESCRIPTION IPC namespaces isolate certain IPC resources, namely, System V IPC objects (see …dumping mawk's byte-code NAME mawk-code - dumping mawk's byte-code SYNOPSIS At startup, mawk compiles the script into byte-code. After that, it interprets the compiled byte-code. U…define a new index NAME CREATE_INDEX - define a new index SYNOPSIS CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ [ IF NOT EXISTS ] name ] ON [ ONLY ] table_name [ USING method ] ( { c…rebuild indexes NAME REINDEX - rebuild indexes SYNOPSIS REINDEX [ ( option [, ...] ) ] { INDEX | TABLE | SCHEMA } [ CONCURRENTLY ] name REINDEX [ ( option [, ...] ) ] { DATABASE | …change a database role NAME ALTER_ROLE - change a database role SYNOPSIS ALTER ROLE role_specification [ WITH ] option [ ... ] where option can be: SUPERUSER | NOSUPERUSER | CREATE…System V interprocess communication mechanisms NAME sysvipc - System V interprocess communication mechanisms DESCRIPTION System V IPC is the name given to three interprocess commun…System V interprocess communication mechanisms NAME sysvipc - System V interprocess communication mechanisms DESCRIPTION System V IPC is the name given to three interprocess commun…overview of POSIX shared memory NAME shm_overview - overview of POSIX shared memory DESCRIPTION The POSIX shared memory API allows processes to communicate information by sharing a…update rows of a table NAME UPDATE - update rows of a table SYNOPSIS [ WITH [ RECURSIVE ] with_query [, ...] ] UPDATE [ ONLY ] table_name [ * ] [ [ AS ] alias ] SET { column_name =…